.px2rem(@name, @px) {
    @{name}: @px / 75 * 1rem;
}
.txh{
	display: flex;
}
html,doby{
	width: 100%;
	height: 100%;
    background: #f7f7f7;
}
#box{
	header{
		.px2rem(height,84);
		.px2rem(line-height,84);
		width: 100%;
		position: fixed;
		top: 0;
		left: 0;
		background: #fff;
		border-bottom: 1px solid #ccc;
		ul{
            .txh;
            justify-content:space-between;
			li{
              .px2rem(margin-left,30);
		      .px2rem(margin-right,30);
		      .px2rem(font-size,30);
			}
		}

	}
	section{
		flex:1;
		height: 100%;
		.px2rem(margin-top,84);
		.px2rem(margin-bottom,84);
	    
}
footer{
	.px2rem(height,121);
	width: 100%;
	background: #ccc;
	position: fixed;
	bottom:0;
	left:0;
	button{
		margin-left: 2%;
		margin-top: 2%;
		 .px2rem(font-size,30);
		 color: #fff;
		 .px2rem(border-radius,15);
	}
	.one{
         width: 30%;
         .px2rem(height,90);
         background: #387ef5;
	}
	.two{
         width: 60%;
         .px2rem(height,90);
         background: #ffa300;
	}
}
}